ABB i-bus
®
KNX
Parameters
FCC/S 1.X.X.1 | 2CDC 508 200 D0211 Rev A 166
The following example makes the behavior clear:
•
Active operating mode: Heating
•
Heating control value: 50 %
•
Cooling control value: 0 %
•
Sending cycle time: 5 minutes (for both operating modes)
•
Valve drive actuator: 2-pipe system for heating and cooling (only one control value input)
– Sending heating control value: control value received: 50 %
– Valve drive actuator output control value: 50 %
– Sending cooling control value: control value received: 0 %
– Valve drive actuator output control value: 0 %
•
No
: The cyclic sending of the inactive control values is inhibited. Only the control values for the
operating mode (heating or cooling) currently active are sent.
•
Yes
: The cyclic sending of the inactive control values remains active. All control values are al-
ways sent corresponding to the cycle time selected.
The cycle times for the individual control values can be set in the related parameter window (e.g.
Basic-stage heating) in
Extended settings
in the
Send control value cyclically
parameter.
7.5.1.4
Send current room temperature cyclically (0 = cyclical sending deactivated)
Options:
0…15…255
This parameter is used to specify the cycle with which the room temperature determined is to be
sent via the
Actual temperature
group object. This temperature is the room temperature calculated
from the different values.
7.5.1.5
Temperature change for sending current room temperature
Options:
00.1…00.5…10.0
This parameter is used to specify the temperature change after which the room temperature deter-
mined is to be sent via the
Actual temperature
group object. If the temperature changes by the
value parameterized here, the new value is sent on the bus.
Note
The actual room temperature is made up of various values, depending on the selection in the
Temperature input
parameter (
Application parameters parameter window
). The values measured
via the physical device inputs and received via group objects (
External temperature 1
&
External
temperature 2
) are used in the calculation. This value is the actual room temperature (actual tem-
perature).
